Question

решите уравнения 1/9• b=1/3; b-1/8=1/4; y+1/3=1/2; с•4=1/5; 1/5-х=1/10.

Answer 1

1)1/9• b=1/3; b=1/3*9/1; b=3; /// 2)b-1/8=1/4; b=1/4+1/8; b=2/8+1/8; b=3/8:/// 3)y+1/3=1/2; y=1/2-1/3; y=3/6-2/6; y=1/6; /// 4)с•4=1/5; c=1/5*1/4; c=1/20; /// 5)1/5-х=1/10; x=1/5-1/10; x=2/10-1/10; x=1/10;